#include <iostream>

#include <string>  

#include <opencv2/opencv.hpp>  

int main(int argc, char** argv)

{

    std::string videoFile = "../test.avi";  

    cv::VideoCapture capture;

    capture.open(videoFile);  

    if (!capture.isOpened())

    {

        std::cout<<"read video failure"<<std::endl;

        return -;

    }  

    cv::BackgroundSubtractorMOG2 mog;  

    cv::Mat foreground;

    cv::Mat background;  

    cv::Mat frame;

    long frameNo = ;

    while (capture.read(frame))

    {

        ++frameNo;  

        std::cout<<frameNo<<std::endl;  

        // 运动前景检测，并更新背景

        mog(frame, foreground, 0.001);         

        // 腐蚀

        cv::erode(foreground, foreground, cv::Mat());  

        // 膨胀

        cv::dilate(foreground, foreground, cv::Mat());  

        mog.getBackgroundImage(background);   // 返回当前背景图像  

        cv::imshow("video", foreground);

        cv::imshow("background", background);  

        if (cv::waitKey() > )

        {

            break;

        }

    }  

    return ;

}